Outside-flash-shearing machine



gwocnto'c I J/cmarz f/Fzgyn 52 W atmvwqs June 18, 1929. H. TORMYN OUTSIDE FLASH SHEARING MACHINE Filed Aug. 1, 1927 2 Sheets-Sheet z 1 M a m imr 1 .-.|lll| m, I I W L ill cllfi lll l llllllll 4 v mg. m

June 18, 1929. H. TORMYN OUTSIDE FLASH SHEARING MACHINE Filed Aug. 1, 1927 2 Sheets-Sheet 2 1 apparatus.- The support 10 and base 12 are Patented June 18, 1929; 1;

UNITED STATES PATENT, OFFICE.

HERMAN .TORM YN, OF DETROIT, MICHIGAN, ASSIGNOR TO GENERAL MOTORS COR PORATION, OF DETROIT, MICHIGAN, A CORPORATION OF. DELAWARE.

OUTSIDE-FLASH-SI-IEARING MACHINE.

Application filed'August 1, 1927. Serial No. -2 09,793.

This invention relates to a machine for trimming the rough edges or flash from cylindrical or sphericalsurfaces formed when two half sections havebeen welded together.

A universal joint ball housingis forined by casting or Otherwise shaping theseparate half sections and then Welding the two parts together. The welding operation leaves two diametrically opposite I longitudinal. seams with a rough edge or flash on the outer and inner side of each seam. A machine for removing the inner rough portion forms the subject matter of my co-pending application for Letters Patent Serial No.209f794. The object of the present invention is to remove the outer flash by a single operation. To attain this end I have constructed the device illustrated in the drawings and described in detail. below. p e

Other objects of the invention will appear in the course of the following description,

drawings and appended claims. In the drawings:

taken in connection with the accompanying at the beginning of the stroke} Figure 2 isa similarview taken at the end i of the stroke. Figure 3 is a plan view.

Figure 4 is a sile viewwith parts broken away, with the parts in theJpos ition-shown Referring to the drawings; the numeral 10 indicates a stationary bed 'or'support on which is rigidly fixed the base 12 of the provided with registering vertical "slots I so "22 is provided with a roove for accommo which permit vertical reciprocation of the guide rods 16 on which isrigidly fixed the operating section 1 8 of the apparatus.

The lower die comprises a -front member v p v the CUShlQIl with the'result that the upper 22 and a rear member 24, fixed together by means of countersunk screws 26 and vertically slidablein a correspondingly shaped groove in the base 12. The front member 7 dating. thelower halt of the cylindrical A shank 9 of the workiwhile the rear member 24: which is somewhatwider, is formed with a orwardly extendingabutment 30 provided section jivliichll ave been welded together,"

necessary ofcourse", to vary the shape of the cutting elements to 'correspond'to' the shape ofsome compressiblematerial such as rubber. The lower plate 42 is held. against [downward movement'by'four bolts 36 cm tending down fromfthe' base 12. through The upper plate 40 is permitted limited downward movement against the resistance Figure 1 is anend view o fthe apparatus:

This means maybe actuated by, power or dies As indicated above, thework 9 comprises two halfsections, semi-cylindrical in cross leaving flashes, 8 of metal on eaclrside. Obviously the machinelllu stratedmay he I used on worksl of var1ous'shapes,'it being of thatjparticular "work. Thelower end of the member 22 rests upon the plate 'Between the platesdO and42 is the cushion 44;

apertures in the plates and the cushion.

of the cushion.

Fixed'in a sunken portionof *thebasc 12 I i by means of screws 46 are the cutting elcments a fi, provided with cutting edges 50. The cutting edge of each cuttingelementfol lows the contour of the work. Y

' FiXedto' the underside of the operating section 18 by means o'fscrews 54 is the upperdie 52; This jelement'isprovided with U a groove which; fits the contour ot the upper half of the Work? The moving section connected withj some means, (notshown) by which it maybe verticallyf reciprocated.

byhand asmay bedesirable.

The operation of the device is as follows. The work is put; in place as illustrated, with the flashes in the'same hori zontalplane. During the initial part of the downward stroke of the operating mechanism, the upper s'ection'alone moves till theupper die clamps over the work as, shown in Figures 2' and 4. Duringthe rest of the "strokefthe two movement of'the lower die is resisted by die forces the enlarged partiA down on'the three circumferentiallyarranged points of thespokes orfpins 32 and'holds" the work 105 is moved upward [by expansion of" the 11 move" down together. Downward cushion 44- until the plate abuts against the under side of the base 12. The upper .section 18 then moves upward alone; The work is then removed, another inserted and thls operation repeated. o I r I claim 1. A machine for removing the flash from v a metallic structure comprisingja support,

a die movable relative thereto, means for resiliently holdingisaid die in a predetermined position, a reciprocable element adapted to move said die against the resistance of said resilient means, and a cutting element adj acent the path of said the. T v

2. A machine for removing the flash from a metallic structure comprising a support, a die movable relative thereto, meansfor resiliently holding said die in a predetermined position, a movable element mounted to move said die againstthe resistance of said resilient means,-and:a cutting element adjacent the path of the .die and on each side thereof. v

3. 'A machine for removing the fiashsfrom a hollow metallic structure comprising'a support, a die movable relative thereto, a

portion of saidodie" extending to a position adapted to contactthe inner side of the hollow 'structure, means for resiliently holding said die inpredetermined position, a reciprocable element adapted to movesaid die,- and a cuttingelement adjacent the path of' said die. c v p v v 4, A machine for removing the flash from a hollow metallic structure comprising a support, a die. movablerelative thereto, a

portion of -said die extending to a position adapted to. contact the inner side ofsa-id metallic structure, means for resiliently holding said die infa predetermined position,

a reciprooableelement' adapted to movesaid die, and a cutting, element adjacent the path -of said die and on each side thereofj 5AA machine for removing the flash from. a metallic structure comprising a support, a cushion supported adjacent said support, I a die movable relative to the'support andpositioned by, 's'aidfc'ushion, a .reciprocable element adapted to move said die, anda cutting element adjacent the pathof said die.

6. A machineforremovin'g the flash from a metallic structurecompri'singasupport, a

cushion mounted on saidsupport, a die movable relative to'the support and positioned by said cushion, "a ,reciprocable element H adapted to move said die, anda cutting element adjacent the path of said die, a

7. Aflmachinefor removing the l fiash from a metallic element comprising a su pport, a

die movable relative to saidsupport, a movable elementadapted to move said die, a cutting element adjacent the path of said die, .andelas'tic means for moving said die 7 i back toits original position. I

machine forreinoving flash from a said separable elements.

welded article including pair of spaced cutters, and a pair of separable reciprocable 'die elements between the cutters, one of wvliicli is movable relative to 'thexother-to clainphthearticle therebetween,after which said die members are movable in unison to carry saidarticle between said cutters. g 9. A machinet'o removing flash from a welded article including a pair of cutters extending in spaced parallel relationwith each other, and a pair of separable clampingelements between which a welded article is to be held, said elements being; reciprocable in unison betweensaid spaced cutters. it

..10. A machine for removing flash from a welded article including a pair of cutters extending in spaced parallelgrelation with each other, a member, interposed between said cutters, a springelement against which againstwhich said member bears, and areciprocatory member adapted after an initial independent movement .to engage with article engaging member toclamp and move the article past said cutter and against the tension of said elastic element.

12. .Amachine for shearing material from an, article including a 'pairf of separable clamping elements, a resilientf'support for one Ofthe elements, afreciprocatorycarrier for the other. elementhdapted upon' 'operation to close said elements upon an article adjacent. the path of movement of said elements adapted to shear off a portion of the material of the article clamped betwecn 13. A machine for shearingflflash from a,

' hollow article, including a shearing device,

pair of separable clamping elements, means associated withone of the elements to extend into and engage with the inside of the hollow article'tohold the same against roe.v tation, and a reciprocatory carrier for the other of the elementsadapted tov close said elements upon anfarticleand move the same past said shearing device. 1

the article andto cooperate with said,

and to move them in unison, andla Lcuttern 14. A machine for shearingtfiash vfrom a...

hollow. article, including a pair of separable ried by one of the elements to extend into the hollow. article, a reciprocatorycarrier for the other element adapted upon operation to, close the elements upon the article and move clamping elements, alateral projection car- 1,717,634 a l 3 a 7 them in unison, and'a shearing device adja- 16. The structure of claim 14 where the cent the path of unison movement ofsaid lateral projection is provided with a rough- 7 elements. 1 v eneol surface forengagement with the ar- '1 15. The structure of claim 14 wherein the tiele to hold it against displacement. 5 lateral projection is provided With a series In testimony whereof I afiix my signao'f pointed pins for engagement With the inture.

side of the hollow article. HERMAN 'roRMYNQ 

